Facing criticism over its state pension fund's hedge fund portfolio, Rhode Island's general treasurer is opening up about how much the state is paying for them.

Gina Raimondo posted a breakdown of the fees Rhode Island paid to the 20 hedge funds managing $1 billion. All told, the state paid $15.9 million in fees during the fiscal year ended June 30, 2012, or about 1.6% of assets.

The hedge fund portfolio returned 9.36% over the period.

Six hedge funds were paid in excess of $1 million in fees, all of them big industry names. The highest paid is Och-Ziff Capital Management, which received $1.9 million, followed by D.E. Shaw Group at $1.81 million and Viking Global Equities at $1.576 million. Och-Ziff is among Rhode Island's largest hedge fund managers, having received an initial commitment of $75 million in November 2011; only Brevan Howard Asset Management received as much, and it was paid $1.078 million in fees.